MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting it's part of a link farm designed to distribute malicious content or manipulate search engine results. The document body is heavily obfuscated, preventing analysis of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://www.sport-konyv.hu/userfiles/file/fovokotexuteveboremabipe.pdf In PDF document text
- http://www.euro-fly.eu/userfiles/files/towudisu.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16073cc5dd3ff3---jagumotu.pdfIn PDF document text
- https://www.servicioscalibrados.com/wp-content/plugins/super-forms/uploads/php/files/3d6041eea0c33499e0beae8ad7947bb9/fakewaroxolojugidosurilud.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/5j84dtu86cj0gkqf4v0s8930h7/lafofaxarufe.pdfIn PDF document text
- https://cmsschoolkg.org/userfiles/file/kebem.pdfIn PDF document text
- http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082ee299c8c9---kadanog.pdfIn PDF document text
- http://ansatrans.ru/admin/ckfinder/userfiles/files/80386596246.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/l2tmk2vreko93mqttf8q7800f0/vekirivudif.pdfIn PDF document text
- https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/829bed454c40f2b8b9bccb88b83931d0/86623698076.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fce7bc60af---jegowotorenijurelufap.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/nq6mo37kvpcsfsku3sfbpc9hmc/zejipazovog.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/52019312931.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c507d16696---88897991665.pdfIn PDF document text
- http://pogservice.ru/userfiles/file/notisanimezig.pdfIn PDF document text
- http://www.urbanwaterways.info/files/tuxafebuvuvuxiv.pdfIn PDF document text
- http://somogroup.vn/ckfinder/userfiles/files/51845991315.pdfIn PDF document text
- https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/a7032fb8ada5cd9c38f0c8065b58325b/zavopenixiditogazixazeli.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/5279fa64dc8749cd25441c48ac2b7f57/fixafaxemajetovo.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608ecc171c6de---25613139486.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/c791fr9a9ovmfkhmum39qiq629/73985451880.pdfIn PDF document text
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vifuvidizezawokixafa.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/upefs2oss8ro2i1367m97lmcd6/lifoxabogejidotomutede.pdfIn PDF document text
- http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfa68d924d9---sonad.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a64f123d91f---33700172884.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=what+to+do+instead+of+universityPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fa20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011232.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11232 | 16616 bytes |
SHA-256: 92818c4f8fc0eacadafc762aefbb55bafd31008d2b98ba5f015d7d126f0eb93f |
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font_02_sfnt_off00013d59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D59 | 10676 bytes |
SHA-256: 0101554f3ebb13fa422c28562ceea44e0d2f01c9baf7ca3e0d8584c832fe782e |
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